EXERCÍCIOS
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EXERCÍCIOS 1) Efetue: a) (+7x) + (-3x) = (R: 4x) b) (-8x) + (+11x) = (R: 3x )c) (-2y) + (-3y) = (R: -5y) d) (-2m) + (-m) = (R: -3m) e) (+5a²) + (-3a²) = (R: 2a²) f) (+5x) + (-5x) = (R: 0) g) (+6x) + (-4x) = (R: 2x) h) (-6n) + (+n) = (R: -4n) i) (+8x) – ( -3x) = (R: 11x) j) (-5x) – (-11x) = (R: 6x) k) (-6y) – (-y) = (R: -5y) l) (+7y) – (+7y) = (R: 0 )m) (-3x) – (+4x) = (R -7x) n) (-6x) – ( -x) = (R: -5x) o) (+2y) – (+5y) = (R: -3y )p) (-m) –(-m) = (R: 0 ) 2) Efetue : a) (+ 3xy) – (-xy) + (xy) = (R: 5xy) b) (+ 15x) – (-3x) – (+7x) + (-2x) = (R: 9x )c) (-9y) –( +3y) – (+y) + (-2y) = (R: -15y) d) (3n) + (-8n) + (+4n) – (-5n) – (-n) = (R: 5n) 3) Efetue: a) (+1/2x) + (-1/3x) = (R: 1x/6) b) ( -2/5x) + (-2/3x) = (R: -16x/15) c) (-7/2y) + (+1/4y) = (R: -13y/4) d) (+2m) +( -3/4m) = (R: 5m/4) e) (+2/3x) - ( -3/2x) = (R: 13x/6) f) (-3/4y) – (+1/2y) = (R: -5y/4) g) (+2/5m) – (+2/3m) = (-4m/15) h) (-3x) –(-2/5x) = (R: 13x/5)
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Transcript of EXERCÍCIOS
EXERCCIOS
1) Efetue:
a) (+7x) + (-3x) = (R: 4x)b) (-8x) + (+11x) = (R: 3x )c) (-2y) + (-3y) = (R: -5y)d) (-2m) + (-m) = (R: -3m)e) (+5a) + (-3a) = (R: 2a)f) (+5x) + (-5x) = (R: 0)g) (+6x) + (-4x) = (R: 2x)h) (-6n) + (+n) = (R: -4n)i) (+8x) ( -3x) = (R: 11x)j) (-5x) (-11x) = (R: 6x)k) (-6y) (-y) = (R: -5y)l) (+7y) (+7y) = (R: 0 )m) (-3x) (+4x) = (R -7x)n) (-6x) ( -x) = (R: -5x)o) (+2y) (+5y) = (R: -3y )p) (-m) (-m) = (R: 0 )2) Efetue :
a) (+ 3xy) (-xy) + (xy) = (R: 5xy)b) (+ 15x) (-3x) (+7x) + (-2x) = (R: 9x )c) (-9y) ( +3y) (+y) + (-2y) = (R: -15y)d) (3n) + (-8n) + (+4n) (-5n) (-n) = (R: 5n)
3) Efetue:
a) (+1/2x) + (-1/3x) = (R: 1x/6)b) ( -2/5x) + (-2/3x) = (R: -16x/15)c) (-7/2y) + (+1/4y) = (R: -13y/4)d) (+2m) +( -3/4m) = (R: 5m/4)e) (+2/3x) - ( -3/2x) = (R: 13x/6)f) (-3/4y) (+1/2y) = (R: -5y/4)g) (+2/5m) (+2/3m) = (-4m/15)h) (-3x) (-2/5x) = (R: 13x/5)
